KU

Kazuhiko Umemura

Ricoh Company: 2 patents #231 of 1,326Top 20%
Overall (2021): #142,560 of 548,734Top 30%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11186737 Ink and printing method Tomohiro Nakagawa, Hiroki Hagiwara, Yuutaroh NONAKA 2021-11-30
11059983 Ink, ink container, inkjet recording device, and recording method Akihiko Matsuyama, Yuuki Yokohama, Amika Sagara, Masaki Kudo, Yukihiro Imanaga +1 more 2021-07-13